Pitch of bolt [mm]
Effective diameter of thread [mm]
Core diameter of thread [mm]
Hexagonal height of nut [mm]
Hex head size [mm]
Height of washer [mm]
External diameter of washer [mm]
Internal diameter of washer [mm]
Nominal diameter of thread [mm]
Stress area [mm^2]
Hex. socket size [mm]
Hex. socket screw thread [mm]
Class Tensile strength Rm [N/mm^2] Elastic limit Rp 0.2 [N/mm^2] Lubr. type Tightening moment [N*m]
8.8 800 640 μ=0.10
μ=0.12
μ=0.14
10.9 1000 900 μ=0.10
μ=0.12
μ=0.14
12.9 1200 1080 μ=0.10
μ=0.12
μ=0.14
μ=0.10 - MoS2 greased
μ=0.12 - electro galv. 8 um
μ=0.14 - not greased
Pitch of bolt [mm]
Fill out the dimension here

Class Tensile strength Rm [N/mm²] Elastic limit Rp 0.2 [N/mm²] Lubr. type Tightening moment [N*m]
8.8 800 640 u=0.10
μ=0.12
μ=0.14
10.9 1000 900 u=0.10
μ=0.12
μ=0.14
12.9 1200 1080 u=0.10
μ=0.12
μ=0.14
μ=0.10 - MoS2 greased
μ=0.12 - electro galv. 8 um
μ=0.14 - not greased
Core diameter of thread [mm]
Effective diameter of thread [mm]
Hexagonal height of nut [mm]
Hex head size [mm]
Height of washer [mm]
External diameter of washer [mm]
Internal diameter of washer [mm]
Nominal diameter of thread [mm]
Stress area [mm^2]
Hexagon socket size [mm]
Hexagon socket screw thread [mm]
All data under reservation. We don't assume liability for none correct data.